HfSiMo is a ternary refractory metal alloy combining hafnium, silicon, and molybdenum, designed for extreme-temperature structural applications. This material belongs to the family of ultra-high-temperature ceramics and refractory metals, offering exceptional thermal stability and mechanical retention at temperatures where conventional superalloys fail. The alloy is primarily of research and development interest for aerospace propulsion systems, nuclear reactors, and hypersonic vehicle structures where oxidation resistance and creep resistance at elevated temperatures are critical.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 27,340.8 | ksi | — | ||
| ↳ | 27,340.8 | ksi | — | ||
| ↳ | 27,190.2 | ksi | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.4800 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | ksi | — | ||
Poisson's Ratio(ν)2 entries | 0.2673 | - | — | ||
| ↳ | 0.2700 | - | — | ||
Shear Modulus(G)3 entries | 15,063.8 | ksi | — | ||
| ↳ | 15,063.8 | ksi | — | ||
| ↳ | 15,150.6 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.3624 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Seebeck Coefficient(S) | -0.1700 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.6374 | eV/atom | — |